Is 1000-degree acquired myopia hereditary?

Written by Li Zhen Dong

Ophthalmology

Updated on February 11, 2025

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High myopia of 1000 degrees can also be inherited. The inheritance of myopia is mainly significant in cases of high myopia. If both parents have high myopia, the heritability is almost above 90%. If one parent has high myopia, the heritability is 45%. If neither parent is myopic, the heritability is nearly 5%. Myopia is primarily formed due to improper use of eyes rather than hereditary factors, which are relatively rare and generally only account for about 10% of myopia cases. Therefore, correct use of eyes is very important.

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Ophthalmology

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Can people with high myopia and floaters undergo myopia surgery?

Patients with high myopia who experience floaters can also undergo myopia correction surgery to eliminate nearsightedness. However, symptoms of floaters will not improve after the surgery. The commonly used myopia correction surgeries include laser surgery and the implantation of a posterior chamber intraocular lens for aphakic eyes. Patients need to visit the ophthalmology department of a hospital for optometry, corneal topography, and A-scan ultrasound examinations. The type of surgery is then determined based on the condition of the eyes. Floaters are caused by the clouding of the vitreous body within the eye due to aging. They can be treated with oral medications to promote absorption. For example, currently, lecithin complex iodine tablets can be taken, but the absorption is slow, requiring patients to adhere to regular treatment. (Please follow the doctor's advice when taking medication.)

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Ophthalmology

51sec

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The difference between nearsightedness and farsightedness.

Myopia is characterized by clear vision up close and blurred vision at a distance; hyperopia is characterized by clear vision at a distance and blurred vision up close. The main difference between myopia and hyperopia is the issue with the eye’s axial length. In an unaccommodated state, when parallel light rays enter the eye and focus in front of the retina, it is called myopia; when they focus behind the retina, it is called hyperopia. Myopic glasses are concave lenses, while hyperopic glasses are convex lenses. When myopia or hyperopia occurs, it is important to rest, reduce close-up activities, avoid eye fatigue, use eyes properly, eat a light diet, adjust your attitude, have regular check-ups, and pay attention to vision health.

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Ophthalmology

1min

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Does myopia correction rebound?

Will there be a rebound after myopia correction surgery? Generally, it relates to two aspects. The first is associated with your pre-surgery degree of myopia; the second relates to your habits in using your eyes after the surgery. Generally speaking, the higher the degree of myopia before the surgery, the more likely a rebound will occur. Roughly speaking, if your degree of myopia was above 700 degrees before the surgery, there's about a 20% to 30% chance of rebounding. However, a rebound does not mean it will return to the previous degree of over 700; typically, it might rebound by around 100 to 200 degrees. The second aspect is significantly related to your post-surgery visual habits. If, after the surgery, you frequently use computers, read documents, or use your phone, there’s a higher chance of experiencing some degree of rebound. Conversely, if your screen time is less, the proportion of myopia rebound tends to be smaller.

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Written by Luan Shu Lin

Ophthalmology

30sec

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Which is more serious, amblyopia or myopia?

Amblyopia and myopia are two different concepts; there is no comparative severity between them. Amblyopia refers to a condition where, despite correction, vision still does not reach 0.8, which is defined as amblyopia and generally occurs before the age of eight. Myopia, on the other hand, is a type of refractive error. This condition can be corrected by wearing eyeglasses, contact lenses, or through myopia surgery after reaching adulthood.

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Written by Li Zhen Dong

Ophthalmology

39sec

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Is 1000-degree acquired myopia hereditary?

High myopia of 1000 degrees can also be inherited. The inheritance of myopia is mainly significant in cases of high myopia. If both parents have high myopia, the heritability is almost above 90%. If one parent has high myopia, the heritability is 45%. If neither parent is myopic, the heritability is nearly 5%. Myopia is primarily formed due to improper use of eyes rather than hereditary factors, which are relatively rare and generally only account for about 10% of myopia cases. Therefore, correct use of eyes is very important.